Family and friends from the Falls City community have been searching the area of 1604 on foot and on horseback.

"We looked around a little for our own peace and comfort [Monday], but by then it was getting dark," said Valerie Farris, Arms's sister-in-law.

Farris, along with family and friends of the Arms Family continued searching Tuesday. The family told KENS 5 that hundreds of people from Falls City are on standby, ready to help in the search for the father of three.

"His 8-year-old daughter is just beside herself," Moy said.

Arms also has two sons, a 16-year-old and a 19-year-old.

"He was a people person. He was everywhere. He wouldn't have just left that day and not come back. He is somewhere and needs to be found," said Cheryl Lyssy, a family friend.

Arms is 5'6", 160 lbs., bald, and he was last seen in a t-shirt and cargo pants. Contrary to what some flyers say, Arms was not wearing a jacket on Sunday.

Investigators are treating this as a missing persons case since the circumstances surrounding the disappearance are a bit odd.

If you have any information on this case, call the Bexar County Sheriff's Office Criminal Investigations Division at 210-335-6070 or the Heidi Search Center at 1-800-547-4435.